Resource Interchange File Format - Explanation


RIFF files consist entirely of "chunks". The overall format is identical to IFF, except for the endianness as previously stated, and the different meaning of the chunk names.

All chunks have the following format:

  • 4 bytes: an ASCII identifier for this chunk (examples are "fmt " and "data"; note the space in "fmt ").
  • 4 bytes: an unsigned, little-endian 32-bit integer with the length of this chunk (except this field itself and the chunk identifier).
  • variable-sized field: the chunk data itself, of the size given in the previous field.
  • a pad byte, if the chunk's length is not even.

Two chunk identifiers, "RIFF" and "LIST", introduce a chunk that can contain subchunks. The RIFF and LIST chunk data (appearing after the identifier and length) has the following format:

  • 4 bytes: an ASCII identifier for this particular RIFF or LIST chunk (for RIFF in the typical case, these 4 bytes describe the content of the entire file, such as "AVI " or "WAVE").
  • rest of data: subchunks.

The file itself consists of one RIFF chunk, which then can contain further subchunks: hence, the first four bytes of a correctly-formatted RIFF file will spell out "R", "I", "F", "F".

More information about the RIFF format can be found in the Interchange File Format article.

RF64 is a multichannel file format based on RIFF specification, developed by the European Broadcasting Union. It is BWF-compatible and allows file sizes to exceed 4 gigabytes

Read more about this topic:  Resource Interchange File Format

Other articles related to "explanation, explanations":

The Frontiers Of Criticism - Content of The Lecture - Difference Between Understanding and Explanation
... of this lecture is devoted to Eliot's critique of what he calls "the criticism of explanation by origins" (107) ... in order to illuminate the distinction between explanation and understanding ...
Comment (computer Programming) - Uses - Algorithmic Description
... In such cases, comments may contain an explanation of the methodology ... Such explanations may include diagrams and formal mathematical proofs ... This may constitute explanation of the code, rather than a clarification of its intent but others tasked with maintaining the code base may find such explanation crucial ...
Types of Explanations
... are many and varied events, objects, and facts which require explanation ... So too, there are many different types of explanation ... Aristotle recognized at least four types of explanation ...
Stevens Explanation
... "Explanation" is a poem from Wallace Stevens's first book of poetry, Harmonium (1923) ... Explanation Ach, Mutter, This old, black dress, I have been embroidering French flowers on it ... space, Like a figure on the church-wall This poem may be an explanation of the difference between conventional decoration and artistic imagination, the latter represented, as Buttel proposes, by an allusion to ...

Famous quotes containing the word explanation:

    How strange a scene is this in which we are such shifting figures, pictures, shadows. The mystery of our existence—I have no faith in any attempted explanation of it. It is all a dark, unfathomed profound.
    Rutherford Birchard Hayes (1822–1893)

    To develop an empiricist account of science is to depict it as involving a search for truth only about the empirical world, about what is actual and observable.... It must involve throughout a resolute rejection of the demand for an explanation of the regularities in the observable course of nature, by means of truths concerning a reality beyond what is actual and observable, as a demand which plays no role in the scientific enterprise.
    Bas Van Fraassen (b. 1941)

    Auden, MacNeice, Day Lewis, I have read them all,
    Hoping against hope to hear the authentic call . . .
    And know the explanation I must pass is this
    MYou cannot light a match on a crumbling wall.
    Hugh MacDiarmid (1892–1978)